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diff --git a/contrib/bind/doc/html/logging.html b/contrib/bind/doc/html/logging.html deleted file mode 100644 index 73b4016..0000000 --- a/contrib/bind/doc/html/logging.html +++ /dev/null @@ -1,373 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> -<HTML> -<HEAD> - <TITLE>BIND logging Statement</TITLE> -</HEAD> - -<BODY> -<H2>BIND Configuration File Guide -- <CODE>logging</CODE> Statement</H2> - -<HR> - -<A NAME="Syntax"><H3>Syntax</H3></A> - -<PRE> -logging { - [ channel <VAR>channel_name</VAR> { - ( file <VAR><A HREF="docdef.html">path_name</A></VAR> - [ versions ( <VAR>number</VAR> | unlimited ) ] - [ size <VAR><A HREF="docdef.html">size_spec</A></VAR> ] - | syslog ( kern | user | mail | daemon | auth | syslog | lpr | - news | uucp | cron | authpriv | ftp | - local0 | local1 | local2 | local3 | - local4 | local5 | local6 | local7 ) - | null ); - - [ severity ( critical | error | warning | notice | - info | debug [ <VAR>level</VAR> ] | dynamic ); ] - [ print-category <VAR><A HREF="docdef.html">yes_or_no</A></VAR>; ] - [ print-severity <VAR><A HREF="docdef.html">yes_or_no</A></VAR>; ] - [ print-time <VAR><A HREF="docdef.html">yes_or_no</A></VAR>; ] - }; ] - - [ category <VAR>category_name</VAR> { - <VAR>channel_name</VAR>; [ <VAR>channel_name</VAR>; ... ] - }; ] - ... -}; -</PRE> - -<A NAME="Usage"><H3>Definition and Usage</H3></A> - -<P>The <CODE>logging</CODE> statement configures a wide variety of -logging options for the nameserver. Its <CODE>channel</CODE> phrase -associates output methods, format options and severity levels with -a name that can then be used with the <CODE>category</CODE> phrase to -select how various classes of messages are logged.</P> - -<P>Only one <CODE>logging</CODE> statement is used to define as many -channels and categories as are wanted. If there are multiple logging -statements in a configuration, the first defined determines the logging, -and warnings are issued for the others. If there is no logging statement, -the logging configuration will be:</P> - -<PRE> - logging { - category default { default_syslog; default_debug; }; - category panic { default_syslog; default_stderr; }; - category packet { default_debug; }; - category eventlib { default_debug; }; - }; -</PRE> - -The logging configuration is established as soon as the -<CODE>logging</CODE> statement is parsed. If you want to redirect -messages about processing of the entire configuration file, the -<CODE>logging</CODE>statement must appear first. Even if you do not -redirect configuration file parsing messages, we recommend -always putting the <CODE>logging</CODE> statement first so that this -rule need not be consciously recalled if you ever do want the -parser's messages relocated. - -<H4>The <CODE>channel</CODE> phrase</H4> - -<P>All log output goes to one or more "channels"; you can make as many -of them as you want.</P> - -<P>Every channel definition must include a clause that says whether -messages selected for the channel go to a file, to a particular syslog -facility, or are discarded. It can optionally also limit the message -severity level that will be accepted by the channel (default is -"info"), and whether to include a <CODE>named</CODE>-generated time -stamp, the category name and/or severity level (default is not to -include any).</P> - -<P>The word <CODE>null</CODE> as the destination option for the -channel will cause all messages sent to it to be discarded; other -options for the channel are meaningless.</P> - -<P>The <CODE>file</CODE> clause can include limitations both on how -large the file is allowed to become, and how many versions of the file -will be saved each time the file is opened. - -<P>The <CODE>size</CODE> option for files is simply a hard ceiling on -log growth. If the file ever exceeds the size, -<CODE>named</CODE> will just not write anything more to it until the -file is reopened; exceeding the size does not automatically trigger a -reopen. The default behavior is to not limit the size of the file.</P> - -<P>If you use the <CODE>version</CODE> logfile option, -<CODE>named</CODE> will retain that many backup versions of the file -by renaming them when opening. For example, if you choose to keep 3 -old versions of the file "lamers.log" then just before it is opened -lamers.log.1 is renamed to lames.log.2, lamers.log.0 is renamed to -lamers.log.1, and lamers.log is renamed to lamers.log.0. No rolled -versions are kept by default; any existing log file is simply -appended. The <CODE>unlimited</CODE> keyword is synonymous with -<CODE>99</CODE> in current BIND releases.</P> - -<P>Example usage of the size and versions options: - -<PRE> - channel an_example_level { - file "lamers.log" versions 3 size 20m; - print-time yes; - print-category yes; - }; -</PRE> - -<P>The argument for the <CODE>syslog</CODE> clause is a syslog -facility as described in the <CODE>syslog</CODE> manual page. How -<CODE>syslogd</CODE> will handle messages sent to this facility is -described in the <CODE>syslog.conf</CODE> manual page. If you have a -system which uses a very old version of <CODE>syslog</CODE> that only -uses two arguments to the <CODE>openlog()</CODE> function, this -clause is silently ignored.</P> - -<P>The <CODE>severity</CODE> clause works like <CODE>syslog</CODE>'s -"priorities", except that they can also be used if you are writing -straight to a file rather than using <CODE>syslog</CODE>. Messages -which are not at least of the severity level given will not be -selected for the channel; messages of higher severity levels will be -accepted.</P> - -<P>If you are using <CODE>syslog</CODE>, the -<CODE>syslog.conf</CODE> priorities will also determine what -eventually passes through. For example, defining a channel facility -and severity as <CODE>daemon</CODE> and <CODE>debug</CODE> but only -logging <CODE>daemon.warning</CODE> via <CODE>syslog.conf</CODE> will -cause messages of severity <CODE>info</CODE> and <CODE>notice</CODE> -to be dropped. If the situation were reversed, with -<CODE>named</CODE> writing messages of only <CODE>warning</CODE> or -higher, <CODE>syslogd</CODE> would print all messages it received -from the channel.</P> - -<P>The server can supply extensive debugging information when it is in -debugging mode. If the server's global debug level is greater than -zero, debugging mode will be active. The global debug level is -set either by starting the <CODE>named</CODE> server with the "-d" -flag followed by a positive integer, or by sending the running server the -SIGUSR1 signal (for example, by using "ndc trace"). The global debug -level can be set to zero, and debugging mode turned off, by sending -the server the SIGUSR2 signal ("ndc notrace"). All debugging messages -in the server have a debug level, and higher debug levels give more -more detailed output. -Channels that specify a specific debug severity, e.g. - -<PRE> - channel specific_debug_level { - file "foo"; - severity debug 3; - }; -</PRE> - -<P>will get debugging output of level 3 or less any time the -server is in debugging mode, regardless of the global debugging level. -Channels with <code>dynamic</code> severity use the server's global -level to determine what messages to print. - -<P>If <CODE>print-time</CODE> has been turned on, the date and -time will be logged. <CODE>print-time</CODE> may be specified for a -syslog channel, but is usually pointless since syslog also prints the -date and time. If <CODE>print-category</CODE> is requested, -then the category of the message will be logged as well. Finally, if -<CODE>print-severity</CODE> is on, the severity level of the -message will be logged. The <CODE>print-</CODE> options may be used -in any combination, and will always be printed in the following order: -time, category, severity. Here is an example where all three -<CODE>print-</CODE> options are on: - -<PRE> - 28-Apr-1997 15:05:32.863 default: notice: Ready to answer queries. -</PRE> - -<P>There are four predefined channels that are used for -default logging as follows. How they are used -used is described in the next section, The <CODE>category</CODE> phrase. - -<PRE> - channel default_syslog { - syslog daemon; # send to syslog's daemon facility - severity info; # only send priority info and higher - }; - - channel default_debug { - file "named.run"; # write to named.run in the working directory - # Note: stderr is used instead of "named.run" - # if the server is started with the "-f" option. - severity dynamic; # log at the server's current debug level - }; - - channel default_stderr { # writes to stderr - file "<stderr>"; # this is illustrative only; there's currently - # no way of specifying an internal file - # descriptor in the configuration language. - severity info; # only send priority info and higher - }; - - channel null { - null; # toss anything sent to this channel - }; -</PRE> - -<P>Once a channel is defined, it cannot be redefined. Thus you cannot -alter the built-in channels directly, but you can modify the default -logging by pointing categories at channels you have defined.</P> - -<H4>The <CODE>category</CODE> phrase</H4> - -<P>There are many categories, so you can send the logs you want to see -wherever you want, without seeing logs you don't want. If you don't specify -a list of channels for a category, log messages in that category will -be sent to the <CODE>default</CODE> category instead. If you don't specify -a default category, the following "default default" is used: - -<PRE> - category default { default_syslog; default_debug; }; -</PRE> - -<P>As an example, let's say you want to log security events to a file, -but you also want keep the default logging behavior. You'd specify the -following: - -<PRE> - channel my_security_channel { - file "my_security_file"; - severity info; - }; - category security { my_security_channel; default_syslog; default_debug; }; -</PRE> - -<P>To discard all messages in a category, specify the -<CODE>null</CODE> channel: - -<PRE> - category lame-servers { null; }; - category cname { null; }; -</PRE> - -<P>The following -categories are available:</P> - -<DL> -<DT><CODE>default</CODE> -<DD> -The catch-all. Many things still aren't classified into categories, -and they all end up here. Also, if you don't specify any channels for -a category, the default category is used instead. If you do not -define the default category, the following definition is used: -<CODE>category default { default_syslog; default_debug; };</CODE> - -<DT><CODE>config</CODE> -<DD> -High-level configuration file processing. - -<DT><CODE>parser</CODE> -<DD> -Low-level configuration file processing. - -<DT><CODE>queries</CODE> -<DD> -A short log message is generated for every query the server receives. - -<DT><CODE>lame-servers</CODE> -<DD> -Messages like "Lame server on ..." - -<DT><CODE>statistics</CODE> -<DD> -Statistics. - -<DT><CODE>panic</CODE> -<DD> -If the server has to shut itself down due to an internal problem, it -will log the problem in this category as well as in the problem's native -category. If you do not define the panic category, the following definition -is used: <CODE>category panic { default_syslog; default_stderr; };</CODE> - -<DT><CODE>update</CODE> -<DD> -Dynamic updates. - -<DT><CODE>update-security</CODE> -<DD> -Denied dynamic updates due to access controls. - -<DT><CODE>ncache</CODE> -<DD> -Negative caching. - -<DT><CODE>xfer-in</CODE> -<DD> -Zone transfers the server is receiving. - -<DT><CODE>xfer-out</CODE> -<DD> -Zone transfers the server is sending. - -<DT><CODE>db</CODE> -<DD> -All database operations. - -<DT><CODE>eventlib</CODE> -<DD> -Debugging info from the event system. Only one channel may be specified for -this category, and it must be a file channel. If you do not define the -eventlib category, the following definition is used: <CODE>category eventlib -{ default_debug; };</CODE> - -<DT><CODE>packet</CODE> -<DD> -Dumps of packets received and sent. Only one channel may be specified for -this category, and it must be a file channel. If you do not define the -packet category, the following definition is used: <CODE>category packet -{ default_debug; };</CODE> - -<DT><CODE>notify</CODE> -<DD> -The NOTIFY protocol. - -<DT><CODE>cname</CODE> -<DD> -Messages like "... points to a CNAME". - -<DT><CODE>security</CODE> -<DD> -Approved/unapproved requests. - -<DT><CODE>os</CODE> -<DD> -Operating system problems. - -<DT><CODE>insist</CODE> -<DD> -Internal consistency check failures. - -<DT><CODE>maintenance</CODE> -<DD> -Periodic maintenance events. - -<DT><CODE>load</CODE> -<DD> -Zone loading messages. - -<DT><CODE>response-checks</CODE> -<DD> -Messages arising from response checking, such as -"Malformed response ...", "wrong ans. name ...", -"unrelated additional info ...", "invalid RR type ...", and "bad referral ...". - -</DL> - -<HR> - -<CENTER><P>[ <A HREF="config.html">BIND Config. File</A> -| <A HREF="http://www.isc.org/products/BIND/">BIND Home</A> -| <A HREF="http://www.isc.org/">ISC</A> ]</P></CENTER> - -<HR> -<ADDRESS> -Last Updated: $Id: logging.html,v 1.14 2002/07/19 22:44:05 marka Exp $ -</ADDRESS> -</BODY> -</HTML> |
